The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 23, 2022
Filed:
Jan. 08, 2020
Seiko Epson Corporation, Tokyo, JP;
Jun Irobe, Chino, JP;
Takefumi Fukagawa, Suwa-gun, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
An organic electroluminescence device according to the present disclosure includes a light-emitting layer containing a light-emitting material, a first reflective layer configured to reflect light generated in the light-emitting layer, a second reflective layer disposed on an opposite side of the light-emitting layer from the first reflective layer, having light reflectivity and light transmissivity, to cause light generated in the light-emitting layer to resonate between the second reflective layer and the first reflective layer, and a dielectric multilayer film disposed on an opposite side of the second reflective layer from the light-emitting layer to cause light emitted from the second reflective layer to resonate.